#captcha {
    font-family: Arial, serif;
    font-style: italic;
    font-weight: bold;
    /*border: 0;*/
    letter-spacing: 2px;
    color: blue;
}

.layui-form-item .layui-input-inline .captcha-input {
    width: 8em;
}

.layui-form-item .captcha-row-l {
    width: 9em !important;
}

.layui-form-item .captcha-row-r {
    width: 7em !important;
}

@media screen and (min-device-width: 600px) and (max-device-width: 1600px) {
    .layui-input-button {
        margin-left: 80px;
        min-height: 36px
    }
    .layui-input-captcha-l {
        margin-left: 2em;
    }
    .layui-input-captcha-r {
        margin-left: 1.2em;
    }
}

@media screen and (max-device-width: 600px) {
    .layui-input-button {
        margin-left: 110px;
        min-height: 36px
    }

}